1. 三部分的；三人的；三组的　having three parts or involving three people or groups
2. 三倍的；三重的　three times as much or as many as sth

　～ alliance　三国同盟
　～ partnership　三方合伙

　The subject has triple aspects.　这个项目有三个部分。
　Black unemployment rate is triple the figure for white.　黑人的失业率是白人的三倍。
　The amount of alcohol in his blood was triple the legal maximum.　他血液中的酒精含量为法定最高限量的三倍。
　He was convicted of a triple murder.　他被判犯了三重谋杀罪。

　vt. & vi.（使）增至三倍 make, become, be three times as much or many

　The firm expects the number of vacancies to double or triple next year.　这家公司预计明年可录用名额增至两到三倍。
　We have tripled our output over the past two years.　在过去的两年中我们的产量已经增加了两倍。